Why take iodine tablets

In an accident, a lot of radioactive iodine may be released into the air. Most of the inhaled iodine is stored in the thyroid gland. Hence the thyroid gland receives a considerably high radiation dose. The radiation emitted by radioactive iodine may cause tumours or hypofunction in the thyroid gland.

The accumulation of radioactive iodine in the thyroid gland can be efficiently reduced by taking a iodine tablet at the right moment. Non-radioactive potassium iodine saturates the thyroid gland. Consequently, radioactive iodine cannot be absorbed in the thyroid gland. Radioactive iodine is passed from the body with urine.

The tablet should be taken 1 - 6 hours before the radioactive cloud is transferred to the area. One iodine dose provides protection for about 24 hours.

How to use iodine tablets

Take an iodine tablet only after the authorities have told you to do so. Instructions are broadcast by the Finnish Broadcasting Company.

Dose correctly with iodine tablets:

• 1 tablet for adult and children over 12 years of age
• 1/2 a tablet for children aged 3-12
• 1/4 of a tablet for children aged 1 month -1 year
• 1/8 of a tablet for children of less than 1 month of age

Take only one dose. If there is another release or if the release continues for a long time, new advice on the second dose is given on the radio.

Do not take any iodine tablet if you are allergic to iodine or if you have a functional disorder of the thyroid gland.

Where to get iodine tablets

Iodine tablets can be bought from pharmacies.

• Companies, institutions and apartment houses are advised to provide iodine tablets to employees, residents and those who stay in institutions.
• Centres of public health are advised to keep iodine tablets in reserve.
• Inhabitants are advised to have them at homes and in leisure cottages.
• The nuclear power companies provide iodine tablets for those who live within a five-kilometre radius of nuclear power plant.